U-boot has had support for years, but it is enabled by default only
for some boards/targets.
After I flashed my NanoPi R6S's eMMC (no SD-card) as per INSTALL.arm64:
=> setenv serverip6 fe80::1
=> tftpboot BOOTAA64.EFI -ipv6
ROUTER SOLICITATION 1
Set gatewayip6: fe80:0000:0000:0000:fce1:baff:fed0:2e5c, prefix_length:
64
Using ethernet@fe1c0000 device
TFTP from server fe80:0000:0000:0000:0000:0000:0000:0001; our IP
address is fe80:0000:0000:0000:5c27:b1ff:fe14:a9c9
Filename 'BOOTAA64.EFI'.
Load address: 0xc00800
Loading: ################
1.7 MiB/s
done
Bytes transferred = 229585 (380d1 hex)
=> bootefi $loadaddr
Booting /BOOTAA64.EFI
disks: sd0
>> OpenBSD/arm64 BOOTAA64 1.22
boot>
iPXE also boots this way, but then hangs, at least on the serial:
Booting /ipxe.efi
iPXE initialising devices...
iPXE 1.21.1+ (ge9a2) -- Open Source Network Boot Firmware --
https://ipxe.org
Features: DNS HTTP iSCSI TFTP VLAN SRP AoE EFI Menu
Press Ctrl-B for the iPXE command line...
I'll investigate that next, but IPv6 itself works fine incl. the
ping6 and pxe commands.
I don't use DHCPv6 and omitting it causes interactive prompts,
hence why it's disabled.
Image size growth seems negligible:
$ du -k u-*
9408 u-boot-rockchip.bin
9424 u-boot-rockchip.bin.new
Feedback? OK?
Index: Makefile
===================================================================
RCS file: /cvs/ports/sysutils/u-boot/rk3588/Makefile,v
diff -u -p -r1.10 Makefile
--- Makefile 9 Aug 2025 09:53:19 -0000 1.10
+++ Makefile 30 Nov 2025 20:23:33 -0000
@@ -1,4 +1,5 @@
VERSION= 2025.07
+REVISION= 0
SOC= rk3588
@@ -27,6 +28,11 @@ EXTRACT_ONLY= ${DISTNAME}${EXTRACT_SUFX}
MAKE_ENV+= BL31=${FULLDISTDIR}/${RK3588_BL31}
+ENABLE_OPTS= IPV6 \
+ IPV6_ROUTER_DISCOVERY \
+ CMD_PING6
+DISABLE_OPTS= CMD_DHCP6
+
pre-build:
cc -o ${WRKSRC}/rkbinpatch ${FILESDIR}/rkbinpatch.c
cd ${WRKSRC} && \
@@ -41,7 +47,9 @@ do-build:
O="build/${BOARD}" \
-f ${MAKE_FILE} "${BOARD}"_defconfig
cd ${WRKSRC}/build/${BOARD} && \
- ../../scripts/config --set-val BAUDRATE 115200
+ ../../scripts/config --set-val BAUDRATE 115200 \
+ ${ENABLE_OPTS:=-e %} \
+ ${DISABLE_OPTS:=-d %}
cd ${WRKSRC} && \
${SETENV} ${MAKE_ENV} ROCKCHIP_TPL=${RK3588_TPL} ${MAKE_PROGRAM} \
${MAKE_FLAGS} O="build/${BOARD}" \
